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fix if offsetVarAndGepTypePair.second is nullptr #1247

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merged 2 commits into from
Nov 17, 2023

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bjjwwang
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@bjjwwang bjjwwang commented Nov 17, 2023

since it is from External API like memcpy

"GepStmt: [Var96744 <-- Var4683]\t\n   call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %13, i8* align 1 %15, i64 8, i1 false), !dbg !26775 { \"ln\": 162, \"cl\": 2, \"fl\": \"/devcloud/ws/sQEab/workspace/j_gIcjhi8u/code/tests/allocator.cpp\" }"

this GepStmt comes from memcpy, which offsetVarAndGepTypePair[i].second is always nullptr

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codecov bot commented Nov 17, 2023

Codecov Report

Merging #1247 (47b4181) into master (e4faa11) will decrease coverage by 0.01%.
Report is 2 commits behind head on master.
The diff coverage is 0.00%.

Additional details and impacted files

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@@            Coverage Diff             @@
##           master    #1247      +/-   ##
==========================================
- Coverage   64.44%   64.44%   -0.01%     
==========================================
  Files         223      223              
  Lines       23721    23722       +1     
==========================================
  Hits        15287    15287              
- Misses       8434     8435       +1     
Files Coverage Δ
svf/lib/MemoryModel/AccessPath.cpp 3.57% <0.00%> (-0.05%) ⬇️

... and 2 files with indirect coverage changes

@@ -112,6 +112,9 @@ APOffset AccessPath::computeConstantByteOffset() const
/// i = 0, type: [10 x i8]*, PtrType, op = 0
/// i = 1, type: [10 x i8], ArrType, op = 8
const SVFType* type = offsetVarAndGepTypePairs[i].second;
/// if offsetVarAndGepTypePairs[i].second is nullptr, it means
/// this GepStmt comes from external API, assert
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Add more comments about this from SVFIRBuilder.cpp:getBaseTypeAndFlatternedFields

@yuleisui yuleisui merged commit 6c82edf into SVF-tools:master Nov 17, 2023
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2 participants